Visual Basic is a high level programming language evolved from the earlier DOS version called BASIC. BASIC means Beginners' All-purpose Symbolic Instruction Code. It is a fairly easy programming language to learn. The codes look a bit like English Language. Different software companies produced different version of BASIC, such as Microsoft QBASIC, QUICKBASIC, GWBASIC ,IBM BASICA and so on.

In BASIC, programming is done in a text-only environment and the program is executed sequentially. In Visual Basic , programming is done in a graphical environment. Because users may click on a certain object randomly, so each object has to be programmed independently to be able to response to those actions (events).
Consequently, a Visual Basic Program is made up of many subprograms, each has its own program codes, and each can be executed independently and at the same time each can be linked together in one way or another.

As shown below, the Visual Basic Environment consists of the

• The Blank Form window which you can design your application's interface.
• The Project window displays the files that are created in your application.
• The Properties window which displays the properties of various controls and objects that are created in your applications.

• Establish the program basics
• Constructing a Program
• Managing Visual Basic Data
  • Assigning Values to Variables
  • Operators in Visual Basic
  • Conditional Operators
  • Logical Operators
  • Using If.....Then.....Else Statements with Opreators